No. ICD-10-CM codes describe diagnoses, not drugs. A prescription for Mounjaro or Zepbound carries the ICD-10-CM code for the condition it treats, chosen from the patient's record; the drug itself is identified by its NDC.
Diagnosis codes, not drug codes
ICD-10-CM is the US diagnosis code set. It answers why a drug was prescribed, not which drug. Drugs are identified by NDC, and by a HCPCS code where one exists. A search for a drug's ICD-10 code is usually a search for the diagnosis code a prior authorization or claim needs.
The prescriber chooses the diagnosis code from the patient's record. Payers set their own prior authorization criteria, which often ask for more than a code — lab results, BMI, or previous treatments. Nothing on this page is coding or coverage advice.
Code families usually documented
ICD-10-CM changes every October. Check the current release for the date of service before relying on a specific code.
| Drug and use | ICD-10-CM code family |
|---|---|
| Mounjaro — type 2 diabetes | E11 (type 2 diabetes mellitus), with the fourth and fifth characters for complications |
| Zepbound — chronic weight management | E66 (overweight and obesity), including the obesity class codes E66.811–E66.813 and overweight E66.3, with a Z68 code for the adult BMI |
| Zepbound — obstructive sleep apnea with obesity | G47.33 (obstructive sleep apnea), together with the obesity and BMI codes |
How the drugs themselves are billed
Mounjaro and Zepbound are pens and vials the patient injects at home. They are usually dispensed by a pharmacy and billed by NDC on a pharmacy claim, so there is no J-code or CPT code for the drug. Med-Code's directory lists no drug-specific HCPCS code for either; when a payer accepts one for a dose given in a clinic, it is the unclassified code J3490 with the NDC and quantity.
Questions
What is the ICD-10 code for Mounjaro?
There isn't one. Mounjaro is prescribed for type 2 diabetes, so the claim or prior authorization carries a type 2 diabetes code from the E11 family, chosen from the patient's record.
What is the ICD-10 code for Zepbound?
There isn't one. For weight management the diagnosis is usually an overweight or obesity code from E66 with an adult BMI code from Z68; for obstructive sleep apnea it is G47.33 with the obesity codes.
Does Mounjaro have a CPT or J-code?
No. It is a self-administered drug billed by NDC through the pharmacy benefit.